Quantic Dream co-founder Guillaume de Foundaumiere believes that Heavy Rain's success proves "there is space for innovation".

"I think that Heavy Rain's success is also a very important sign to the industry," de Fondaumiere told our trade-only sister site GamesIndustry.biz.

"There is space for innovation, and we are - to a certain degree - a relatively conservative industry, an industry where it's sometimes difficult to push the boundaries.

"So whenever there's a success such as Heavy Rain, it fuels a lot of hope for all the people out there who try to do things differently, and try to expand the market."

De Fondaumiere was also understandably pleased with the critical response to the game, much as David Cage was when we spoke to him in London recently. But he said the team's satisfaction went further than that.

"The mood of the team is pretty high - we've been working for three and a half years to deliver on a very strong promise," he said.

"As I always say, reviews are important, sales are even more important, but the most important thing for David [Cage] and I was to deliver on the promise."